In an earlier blog a commenter asked asked a question about how much inductance a Joule Thief should have; is there too much or too little. Well, I assembled and experimented with this Joule Thief to find out how little was too little. I cut of two 16 inch (40 cm) lengths of 30 AWG
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I was discussing with Aki (theledart.com) his JT blinker, which uses a single winding coil, two transistors for the “JT” V booster, and two transistors in an astable multivibrator to blink the “JT”. He asked me to include the schematic. The first circuit boards that I had made from ExpressPCB.com used an astable multivibrator. I
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I received a Google Alert for a Youtube video called “Joule Theif (sic) meets ABHA Coil!!” and I have some comments that I’d like to share, but I’m not going to put up with Youtube’s extremely lame text limitation of 512 characters. The two batteries in series show 2.5 volts on one DMM, and I’m
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